I had autos. White widows were relatively compact, I also had Colorado Cookie and Pineapple Express, and they were taller, so it depends on the strain, strength of lights, container size, topping, etc. Pic link below.
Your plants look sweet though. I agree, perhaps there may be a bit of under-watering, but otherwise they look sweet. If you haven’t nuted yet, they are going to get hungrier an hungrier and with eat through what you got in your soil quickly.